NVIDIA GeForce RTX 4090D vs NVIDIA L20
GPU Comparison Result
Below are the results of a comparison of
NVIDIA GeForce RTX 4090D
and
NVIDIA L20
video cards based on key performance characteristics, as well as power consumption and much more.
Advantages
- Higher Bandwidth: 1008 GB/s (1008 GB/s vs 864.0 GB/s)
- More Shading Units: 14592 (14592 vs 11776)
- Newer Launch Date: December 2023 (December 2023 vs November 2023)
- Larger Memory Size: 48GB (24GB vs 48GB)
Basic
NVIDIA
Label Name
NVIDIA
December 2023
Launch Date
November 2023
Desktop
Platform
Desktop
GeForce RTX 4090D
Model Name
L20
GeForce 40
Generation
Tesla Ada
2280MHz
Base Clock
1440MHz
2520MHz
Boost Clock
2520MHz
PCIe 4.0 x16
Bus Interface
PCIe 4.0 x16
-
Transistors
76,300 million
-
RT Cores
92
-
Tensor Cores
?
Tensor Cores are specialized processing units designed specifically for deep learning, providing higher training and inference performance compared to FP32 training. They enable rapid computations in areas such as computer vision, natural language processing, speech recognition, text-to-speech conversion, and personalized recommendations. The two most notable applications of Tensor Cores are DLSS (Deep Learning Super Sampling) and AI Denoiser for noise reduction.
368
-
TMUs
?
Texture Mapping Units (TMUs) serve as components of the GPU, which are capable of rotating, scaling, and distorting binary images, and then placing them as textures onto any plane of a given 3D model. This process is called texture mapping.
368
-
Foundry
TSMC
-
Process Size
5 nm
-
Architecture
Ada Lovelace
Memory Specifications
24GB
Memory Size
48GB
GDDR6X
Memory Type
GDDR6
384bit
Memory Bus
?
The memory bus width refers to the number of bits of data that the video memory can transfer within a single clock cycle. The larger the bus width, the greater the amount of data that can be transmitted instantaneously, making it one of the crucial parameters of video memory. The memory bandwidth is calculated as: Memory Bandwidth = Memory Frequency x Memory Bus Width / 8. Therefore, when the memory frequencies are similar, the memory bus width will determine the size of the memory bandwidth.
384bit
1313MHz
Memory Clock
2250MHz
1008 GB/s
Bandwidth
?
Memory bandwidth refers to the data transfer rate between the graphics chip and the video memory. It is measured in bytes per second, and the formula to calculate it is: memory bandwidth = working frequency × memory bus width / 8 bits.
864.0 GB/s
Theoretical Performance
443.5 GPixel/s
Pixel Rate
?
Pixel fill rate refers to the number of pixels a graphics processing unit (GPU) can render per second, measured in MPixels/s (million pixels per second) or GPixels/s (billion pixels per second). It is the most commonly used metric to evaluate the pixel processing performance of a graphics card.
322.6 GPixel/s
1149 GTexel/s
Texture Rate
?
Texture fill rate refers to the number of texture map elements (texels) that a GPU can map to pixels in a single second.
927.4 GTexel/s
73.54 TFLOPS
FP16 (half)
?
An important metric for measuring GPU performance is floating-point computing capability. Half-precision floating-point numbers (16-bit) are used for applications like machine learning, where lower precision is acceptable. Single-precision floating-point numbers (32-bit) are used for common multimedia and graphics processing tasks, while double-precision floating-point numbers (64-bit) are required for scientific computing that demands a wide numeric range and high accuracy.
59.35 TFLOPS
1149 GFLOPS
FP64 (double)
?
An important metric for measuring GPU performance is floating-point computing capability. Double-precision floating-point numbers (64-bit) are required for scientific computing that demands a wide numeric range and high accuracy, while single-precision floating-point numbers (32-bit) are used for common multimedia and graphics processing tasks. Half-precision floating-point numbers (16-bit) are used for applications like machine learning, where lower precision is acceptable.
927.4 GFLOPS
75.011
TFLOPS
FP32 (float)
?
An important metric for measuring GPU performance is floating-point computing capability. Single-precision floating-point numbers (32-bit) are used for common multimedia and graphics processing tasks, while double-precision floating-point numbers (64-bit) are required for scientific computing that demands a wide numeric range and high accuracy. Half-precision floating-point numbers (16-bit) are used for applications like machine learning, where lower precision is acceptable.
59.35
TFLOPS
Miscellaneous
114
SM Count
?
Multiple Streaming Processors (SPs), along with other resources, form a Streaming Multiprocessor (SM), which is also referred to as a GPU's major core. These additional resources include components such as warp schedulers, registers, and shared memory. The SM can be considered the heart of the GPU, similar to a CPU core, with registers and shared memory being scarce resources within the SM.
92
14592
Shading Units
?
The most fundamental processing unit is the Streaming Processor (SP), where specific instructions and tasks are executed. GPUs perform parallel computing, which means multiple SPs work simultaneously to process tasks.
11776
128 KB (per SM)
L1 Cache
128 KB (per SM)
72MB
L2 Cache
96MB
425W
TDP
275W
-
Vulkan Version
?
Vulkan is a cross-platform graphics and compute API by Khronos Group, offering high performance and low CPU overhead. It lets developers control the GPU directly, reduces rendering overhead, and supports multi-threading and multi-core processors.
1.3
-
OpenCL Version
3.0
-
OpenGL
4.6
-
DirectX
12 Ultimate (12_2)
-
CUDA
8.9
-
Power Connectors
1x 16-pin
-
Shader Model
6.7
-
ROPs
?
The Raster Operations Pipeline (ROPs) is primarily responsible for handling lighting and reflection calculations in games, as well as managing effects like anti-aliasing (AA), high resolution, smoke, and fire. The more demanding the anti-aliasing and lighting effects in a game, the higher the performance requirements for the ROPs; otherwise, it may result in a sharp drop in frame rate.
128
-
Suggested PSU
600W
Benchmarks
FP32 (float)
/ TFLOPS
GeForce RTX 4090D
75.011
+26%
L20
59.35